Malicious code in nebulaai-sdk (npm)
- Product
- nebulaai-sdk
- Affected
- nebulaai-sdk 1.0.0
- Fixed in
- No fix yet
Last verified against sources: October 26, 2026
Am I affected?
nebulaai-sdk: affected nebulaai-sdk 1.0.0. No fix has been reported yet.
- Check your version: run
npm ls nebulaai-sdk. Versions = 1.0.0 of nebulaai-sdk are affected. [1]
What to do now
- Remove the package if it is installed: run
npm uninstall nebulaai-sdk. [1] - No fixed version is available yet, so there is no upgrade to make. [1]
General practice, not from the source: if the affected software could read tokens or credentials, rotate them after upgrading; pin versions and review changes before updating tools your agents run.
What happened
- The npm package nebulaai-sdk 1.0.0 hides a malicious script that runs when the package is installed. [1]
- That script carries a hidden Windows program inside it, and on Windows it writes the program to a file named conhost.exe in the user's LOCALAPPDATA folder, pretending to be a normal Windows file. [1]
- The script then starts that program in the background, with no window shown, and it keeps running after the install finishes. [1]
- The package has no real SDK features; the install script exists only to drop and run the hidden program. [1]
Impact
What was done
- The advisory was published with no patched version listed. [1]
Sources
- GHSA-57f4-h93r-jvh6 — GitHub Advisory Database
Every statement above was checked against these sources before publishing. Spotted an error? Tell us and we will correct it with a dated note.
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Malicious code in nebulaai-sdk (npm)
Product: nebulaai-sdk | Affected: nebulaai-sdk 1.0.0 | Fixed in: No fix yet
Summary: The npm package nebulaai-sdk 1.0.0 hides a malicious script that runs when the package is installed.
Source & remediation on AgentArmorHQ: https://agentarmorhq.com/incidents/2026/09/ghsa-57f4-h93r-jvh6-nebulaai-sdkCorrections
Report an error or request a correction. We review requests within 5 business days and add a dated correction note.
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